diff --git a/include/hw/input/ps2.h b/include/hw/input/ps2.h
index 0fec91cdb0..7f0a80af9d 100644
--- a/include/hw/input/ps2.h
+++ b/include/hw/input/ps2.h
@@ -26,8 +26,8 @@
 #define HW_PS2_H
 
 #define PS2_MOUSE_BUTTON_LEFT   0x01
-#define PS2_MOUSE_BUTTON_MIDDLE 0x02
-#define PS2_MOUSE_BUTTON_RIGHT  0x04
+#define PS2_MOUSE_BUTTON_RIGHT  0x02
+#define PS2_MOUSE_BUTTON_MIDDLE 0x04
 #define PS2_MOUSE_BUTTON_SIDE   0x08
 #define PS2_MOUSE_BUTTON_EXTRA  0x10